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Add SX and SXDG gates #277

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merged 2 commits into from
Feb 12, 2025
Merged

Add SX and SXDG gates #277

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ffe9383
add SX and SXDG gates
kevinsung Feb 12, 2025
c1eabef
add sdg and tdg tests
kevinsung Feb 12, 2025
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9 changes: 9 additions & 0 deletions quimb/tensor/circuit.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
- [ ] multi qubit gates via MPO for MPS simulation
"""

import cmath
import functools
import itertools
import math
Expand Down Expand Up @@ -419,6 +420,8 @@
register_constant_gate("SDG", qu.S_gate().H, 1)
register_constant_gate("T", qu.T_gate(), 1)
register_constant_gate("TDG", qu.T_gate().H, 1)
register_constant_gate("SX", cmath.rect(1, 0.25 * math.pi) * qu.Xsqrt(), 1)
register_constant_gate("SXDG", cmath.rect(1, -0.25 * math.pi) * qu.Xsqrt().H, 1)
register_constant_gate("X_1_2", qu.Xsqrt(), 1, "X_1/2")
register_constant_gate("Y_1_2", qu.Ysqrt(), 1, "Y_1/2")
register_constant_gate("Z_1_2", qu.Zsqrt(), 1, "Z_1/2")
Expand Down Expand Up @@ -2038,6 +2041,12 @@
def tdg(self, i, gate_round=None, **kwargs):
self.apply_gate("TDG", i, gate_round=gate_round, **kwargs)

def sx(self, i, gate_round=None, **kwargs):
self.apply_gate("SX", i, gate_round=gate_round, **kwargs)

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def sxdg(self, i, gate_round=None, **kwargs):
self.apply_gate("SXDG", i, gate_round=gate_round, **kwargs)

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def x_1_2(self, i, gate_round=None, **kwargs):
self.apply_gate("X_1_2", i, gate_round=gate_round, **kwargs)

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4 changes: 4 additions & 0 deletions tests/test_tensor/test_circuit.py
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Expand Up @@ -235,8 +235,12 @@ def test_all_gate_methods(self, Circ):
("y", 1, 0),
("z", 1, 0),
("s", 1, 0),
("sdg", 1, 0),
("t", 1, 0),
("tdg", 1, 0),
("h", 1, 0),
("sx", 1, 0),
("sxdg", 1, 0),
("iden", 1, 0),
("x_1_2", 1, 0),
("y_1_2", 1, 0),
Expand Down
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